Based on the scope of work (SOW), there are four possible outcomes or levels of review.

1. EIS is the highest level of review and rarely performed by FEMA.

2. EA is the second highest level of review.  Typical actions that require an EA by FEMA are new construction projects, temporary housing on undeveloped sites, relocating facilities, large-scale drainage projects, and controversial actions.

3. CATEXs are exemptions for specific types of actions determined to have no significant impact on the human environment.

4. STATEXs are exemptions from NEPA review and only apply to Public Assistance and Individual Assistance projects with little or no impact on the environment.